<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>分类参数</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-alert
        title="注意：只允许为第三级分类设置相关参数！"
        type="warning"
        :closable="false"
        show-icon>
      </el-alert>
      <el-row class="cat-opt">
        <el-col>
          <span>选择商品分类：</span>
          <el-cascader expandTrigger = 'hover' v-model="selectedCateKeys" :options="cateList" :props="cateProps " @change="handleChange"></el-cascader>
        </el-col>
      </el-row>
      <el-tabs v-model="activeName" @tab-click="handleTabClick">
        <el-tab-pane label="动态参数" name="many">
          <el-button type="primary" :disabled="isBtnDisable" @click="addDialogVisible = true">添加参数</el-button><el-table :data="manyTableList" border stripe>
            <el-table-column type="expand">
              <template slot-scope="scope">
                <!-- <el-tag>{{scope.row}}</el-tag> -->
                <el-tag v-for="(item ,index) in scope.row.attr_vals" :key="index" closable @close="handleClose(index,scope.row)">{{item}}</el-tag>
                <el-input
                  class="input-new-tag"
                  v-if="scope.row.inputVisible"
                  v-model="scope.row.inputValue"
                  ref="saveTagInput"
                  size="small"
                  @keyup.enter.native="handleInputConfirm(scope.row)"
                  @blur="handleInputConfirm(scope.row)">
                </el-input>
                <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+ New Tag</el-button>
              </template>
            </el-table-column>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="参数名称" prop="attr_name"></el-table-column>
            <el-table-column label="操作">
              <template slot-scope="scope">
                <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.attr_id)">修改</el-button>
                <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeEditDialog(scope.row.attr_id)">删除</el-button>
              </template>
            </el-table-column>
          </el-table>
        </el-tab-pane>
        <el-tab-pane label="静态属性" name="only">
          <el-button type="primary" :disabled="isBtnDisable" @click="addDialogVisible = true">添加属性</el-button>
          <el-table :data="onlyTableList" border stripe>
            <el-table-column type="expand">
              <template slot-scope="scope">
                <!-- <el-tag>{{scope.row}}</el-tag> -->
                <el-tag v-for="(item ,index) in scope.row.attr_vals" :key="index" closable @close="handleClose(index,scope.row)">{{item}}</el-tag>
                <el-input
                  class="input-new-tag"
                  v-if="scope.row.inputVisible"
                  v-model="scope.row.inputValue"
                  ref="saveTagInput"
                  size="small"
                  @keyup.enter.native="handleInputConfirm(scope.row)"
                  @blur="handleInputConfirm(scope.row)">
                </el-input>
                <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+ New Tag</el-button>
              </template>
            </el-table-column>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="属性名称" prop="attr_name"></el-table-column>
            <el-table-column label="操作">
              <template slot-scope="scope">
                <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.attr_id)">修改</el-button>
                <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeEditDialog(scope.row.attr_id)">删除</el-button>
              </template>
            </el-table-column>
          </el-table>
        </el-tab-pane>
      </el-tabs>
    </el-card>
    <el-dialog
      :title="'添加' + titleText"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClose">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px" class="demo-ruleForm">
        <el-form-item :label="titleText" prop="attr_name">
          <el-input v-model="addForm.attr_name"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addParams">确 定</el-button>
      </span>
    </el-dialog>
    <el-dialog
      :title="'修改' + titleText"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="100px" class="demo-ruleForm">
        <el-form-item :label="titleText" prop="attr_name">
          <el-input v-model="editForm.attr_name"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editParams">确 定</el-button>
      </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  data() {
    return {
      cateList: [],
      cateProps: {
        value: 'cat_id',
        label: 'cat_name',
        children: 'children'
      },
      selectedCateKeys: [],
      activeName: 'many',
      manyTableList: [],
      onlyTableList: [],
      addDialogVisible: false,
      addForm: {
        attr_name: ''
      },
      addFormRules: {
        attr_name: [{ required: true, message: '请输入参数名称', trigger: 'blur' }]
      },
      editDialogVisible: false,
      editForm: {},
      editFormRules: {
        attr_name: [{ required: true, message: '请输入参数名称', trigger: 'blur' }]
      }
    }
  },
  created() {
    this.getCateList()
  },
  methods: {
    async getCateList() {
      let res = await this.$http.get(`categories`)
      // console.log(res)
      if (res.data.meta.status !== 200) return this.$message.error(res.data.meta.msg)
      this.cateList = res.data.data
      this.$message.success(res.data.meta.msg)
    },
    handleChange() {
      this.getParamsData()
    },
    handleTabClick() {
      this.getParamsData()
      // console.log(this.activeName)
    },
    async getParamsData() {
      // console.log(this.selectedCateKeys)
      if (this.selectedCateKeys.length !== 3) {
        this.selectedCateKeys = []
        this.manyTableList = []
        this.onlyTableList = []
        return
      }
      let res = await this.$http.get(`categories/${this.cateId}/attributes`, { params: { sel: this.activeName } })
      // console.log(res)
      if (res.data.meta.status !== 200) {
        return this.$message.error(res.data.meta.msg)
      } else if (res.data.meta.status === 200) {
        this.$message.success(res.data.meta.msg)
        res.data.data.forEach(item => {
          item.attr_vals = item.attr_vals.split('')
          item.inputVisible = false
          item.inputValue = ''
        })
        // console.log(res.data.data)
        if (this.activeName === 'many') {
          // console.log( res)
          this.manyTableList = res.data.data
        } else if (this.activeName === 'only') {
          this.onlyTableList = res.data.data
          // console.log(this.onlyTableList + '111',this.manyTableList+ '222')
        }
      }
    },
    addDialogClose() {
      // console.log(this)
      this.$refs.addFormRef.resetFields()
    },
    addParams() {
      // alert(1)
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        let res = await this.$http.post(`categories/${this.cateId}/attributes`, {
          attr_name: this.addForm.attr_name,
          attr_sel: this.activeName
        })
        // console.log(res)
        if (res.data.meta.status !== 201) return this.$message.error(res.data.meta.msg)
        this.addDialogVisible = false
        this.getParamsData()
        this.$message.success(res.data.meta.msg)
      })
    },
    async showEditDialog(id) {
      let res = await this.$http.get(`categories/${this.cateId}/attributes/${id}`, { params: { attr_sel: this.activeName } })
      // console.log(res)
      if (res.data.meta.status !== 200) {
        return this.$message.error(res.data.meta.msg)
      } else if (res.data.meta.status === 200) {
        this.$message.success(res.data.meta.msg)
        this.editForm = res.data.data
      }
      this.editDialogVisible = true
    },
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    editParams() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        let res = await this.$http.put(`categories/${this.cateId}/attributes/${this.editForm.attr_id}`, { attr_name: this.editForm.attr_name, attr_sel: this.activeName })
        // console.log(res)
        if (res.data.meta.status !== 200) return this.$message.error(res.data.meta.msg)
        this.$message.success(res.data.meta.msg)
        this.getParamsData()
        this.editDialogVisible = false
      })
    },
    removeEditDialog(id) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        let res = await this.$http.delete(`categories/${this.cateId}/attributes/${id}`)
        // console.log(res)
        if (res.data.meta.status !== 200) return this.$message.error(res.data.meta.msg)
        this.$message.success(res.data.meta.msg)
        this.getParamsData()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    async handleInputConfirm(row) {
      if (row.inputValue.trim().length === 0) {
        row.inputValue = ''
        row.inputVisible = false
        return
      }
      row.attr_vals.push(row.inputValue.trim())
      row.inputVisible = false
      row.inputValue = ''
      this.saveAttrVals(row)
      // this.getParamsData()
    },
    async saveAttrVals(row) {
      let res = await this.$http.put(`categories/${this.cateId}/attributes/${row.attr_id}`,
        {
          attr_name: row.attr_name,
          attr_sel: row.attr_sel,
          attr_vals: row.attr_vals.join('')
        })
      // console.log(res)
      if (res.data.meta.status !== 200) return this.$message.error(res.data.meta.msg)
      this.$message.success(res.data.meta.msg)
    },
    showInput (row) {
      // console.log(22222)
      row.inputVisible = true
      this.$nextTick(_ => {
        this.$refs.saveTagInput.$refs.input.focus()
      })
    },
    handleClose(i, row) {
      row.attr_vals.splice(i, 1)
      this.saveAttrVals(row)
    }
  },
  computed: {
    isBtnDisable() {
      if (this.selectedCateKeys.length !== 3) {
        return true
      } else {
        return false
      }
    },
    cateId() {
      if (this.selectedCateKeys.length === 3) {
        return this.selectedCateKeys[2]
      }
      return null
    },
    titleText() {
      return this.activeName === 'many' ? '动态参数' : '静态属性'
    }
  }
}
</script>

<style lang="less" scoped>
.cat-opt {
  margin: 20px 0;
}
.el-tag {
  margin: 10px;
}
.input-new-tag {
  width: 120px;
}
</style>
